<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
  <title>JSP - Hello World</title>
</head>
<body>
<h1><%= "Hello World!" %></h1>
<br/>
<a href="hello-servlet">Hello Servlet</a>
  <%
    System.out.println("index.jsp执行了...");
  %>
  <form>
    用户名：<input type="text" name="name">
    <input type="submit" value="提交按钮">
  </form>
</body>
</html>